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mysql
installation
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Yum can be used to install, configure the first source epel
yum install -y redis -
You can compile and install
wget http://download.redis.io/releases/redis-5.0.5.tar.gz
tar xf redis-5.0.5.tar.gz
cd redis-5.0.5/
make
make test
yum install -y tcl
redis-Benchmark # performance test
redis-the Check-aof # Check and repair the aof file
redis-the Check-rdb # Check and repair the rdb file
redis-cli client # redis of
redis-sentinel cluster # redis of
redis-server server # redis of
redis -trib.rb # cluster management
Start redis
./src/redis-server default port is 6379, the default startup will occupy terminal
Performance Testing
./src/redis-benchmark -q
PING_INLINE: 73855.24 requests per second
PING_BULK: 73800.73 requests per second
SET: 74074.07 requests per second
GET: 72833.21 requests per second
INCR: 73637.70 requests per second
LPUSH: 73855.24 requests per second
RPUSH: 70175.44 requests per second
LPOP: 72202.16 requests per second
RPOP: 74183.98 requests per second
SADD: 74962.52 requests per second
HSET: 75642.96 requests per second
SPOP: 73746.31 requests per second
LPUSH (needed to benchmark LRANGE): 74850.30 Requests per SECOND
LRANGE_100 (First 100 Elements): 48379.30 Requests per SECOND
LRANGE_300 (First 300 Elements): 24172.11 Requests per SECOND
LRANGE_500 (First 450 Elements): 18670.65 Requests per SECOND
LRANGE_600 (First 600 Elements): 15384.62 Requests per SECOND
MSET ( Keys 10): 78186.08 Requests per SECOND,
default is 100000,50 initiate simultaneous connections
connection
./src/redis-cli
-h ip address
-p port
-s socket
-a password
-n designated library redis
redis commands are not case sensitive
redis data types
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string
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hash
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list
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set
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token
Related command
ping
Redis used to test whether the communication, the return value is pong
info
Access to information systems
echo
Print content, test use
quit
drop out
select
Switching redis library, a total of 16, 0-15
of the
One or more key to delete the specified, non-existent key ignored
exists
Determining whether there is a key, the presence of a 1, 0 is not present
expire key seconds
The key to the specified settings survival time, when after the key expires, it is automatically deleted
ttl
View key survival time, -2 key -1 permanent does not exist
keys pattern
Find all meet the pattern of the key, support wildcards
move key db
Key to move the current designated db inside, a successful return, else return 0
pexpire key ms
A key to set the expiration time, in milliseconds
pttl key
View key survival time, but in milliseconds
randromkey
Gets a random key, but does not remove, if the database is empty, then return empty
rename
Rename key, if the source key does not exist, the error, if the target key is present, the cover
renamenx
Rename the key, if the source key does not exist, an error, if the target key is present, unchanged
type
View key type of data stored, if not the key, then none return
string
set
Set key value
If the key is present, the coverage does not exist, the new
ex second set key survival time, in seconds
px ms set key of the survival time, in milliseconds
nx If the key does not exist, create a new, if present, nil is returned
xx key exists only in order to operate
get
Obtaining corresponding key value, only get one, if the key is present, the return value, if the key does not exist, it returns nil
mset
Bulk create key vlaue correspondence, it will overwrite an existing key
mget
Batch acquire key, if you do not exist, nil is returned
GetSet
To the designated key to set a new value, and return to the original value, if the key does not exist, returns nil
strlen
Returns the value of the length
append
If the key is present, append, if the key does not exist, the new
incr
The key plus one exists, can only be effective for digital
decr
The present key value minus 1, only valid digital
incrby
The value of the specified key exists to increase the number of valid only for digital
decrby
The present key number by the specified value, only effective digital
getrange
Slice, similar with python, you can not use step
incrbyfloat (default retention 17)
The key present in the specified floating-point value increases
list
lpush
One or more of the value inserted at the head of the list
lpop
Removes and returns the first element of a list of key
lrange
View a list of specified elements, it shows all 0, -1
rpush
One or more of the value inserted at the tail of the list (the last edge)
rpop
Delete the value of the tail
rpushx
The key value is inserted into the tail, key must exist before they can
lpushx
The value is inserted into the key head, key must exist before they can
lindex
Starting from the header, obtaining the index value of the subscript
linsert
After the specified key value is inserted into the front element or
before 前
After after
If the value does not exist, no action
len
Get a list length
LRMS
Delete the list value
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count> 0 toward the end of the table from the lookup table header, delete the specified number of
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count = 0 Remove all
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count <0 toward the header from the position of the tail of the lookup table, delete the specified number
lset
Alternatively index location specified value, if the index is out of range, an error
LTrim
Slice list
hash
{'db':{"redis":'redis.conf',"mysql':'my.cnf',"nginx":"nginx.conf"}}
hset
To increase key value hash value
choose
Get the length of the hash
hget
Gets a hash key inside the value
hgetall
Get all the key-value pairs
hmset
Batch Add key-value pairs
hmget
Batch obtain key-value pairs
hsetnx
To increase the specified hash key value pairs, if the original field is present, the operation is invalid, and if not, then add
hkeys
Gets the hash table of all field
whales
Gets the value of all the hash table
hdel
One or more field-value hash table delete
hexists
The hash table is determined whether there is a field, if present, was 1, there was 0
hincrby
Hash table to increase the value of the field specified, limited numbers
hincrbyfloat
To hash table field specified floating-point increase, it is limited to digital
set
sadd
Adding value to the collection, if the value is present, nothing operation, if the value does not exist, add
SMEMBERS
Get all the members of a collection
scard
Gets the number of collection
sdiff
Obtaining a difference set of the two sets, the presence of the front, back but does not exist
sinter
Gets intersection of two sets
sunion
Obtain and set two sets of
SISMEMBER
Determining whether the elements in the set, if present, was 1, and 0 if there is no
smove
Elements from a specified set of mobile to another set, if the source set exists, the mobile, and if not, is ignored if the target set is present, direct movement, if the object set does not exist, and create a new set of moves
spop
Remove elements specified number of random and delete elements of the print
SRANDMEMBER
Get the number of elements specified random
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Gets a random default
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If the count> 0,
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If the count is greater than the total number of set, then remove all
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If the count is less than the total number of the set, then a count taken randomly
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If count <0, the absolute value of the random count value extracted twice
srem
Delete the specified one or more elements